2.1.3 Datastructuur: Terratec

The "terratec" profile is specific for the Terratec company. The directory structure is a little bit different then how it is delivered on a harddrive.
But the metadata files such as the calibration and position file of the images, are expected in the same format.

Download the zip-file to see the example directory structure => 221027-Ingest_Profile_terratec.zip

Folder structure description:

• Folders for "BW", "FW" and "NAD" have the same structure:
  • Calibration file known from terratec in .txt format, space delimeted
    • The first 4 lines contains the header, 
    • From line 5 is the content represented with the following columns: 
      1. CameraID 
      2. Rows(pix) 
      3. Cols(pix) 
      4. PixelSize(microns) 
      5. FocalLenght(mm) 
      6. PPAx(microns) 
      7. PPAy(microns) 
      8. K1 
      9. K2 
      10. K3 
      11. P1 
      12. P2 
      13. ImageID
    • Every row represent one image.
    • The column "ImageID" without filepath and file extension.

  • Absolute position and orientation file known in .txt format, delimited by space

    • The first 10 lines contains the header, 
    • From line 5 is the content represented with the following columns: 
      1. PhotoId  
      2. X  
      3. Y  
      4. Z  
      5. Omega 
      6. Phi  
      7. Kappa

    • Every row represent one image.

    • The column "PhotoId" without filepath and file extension.
    • Coördinatesystem: RD New + NAP Hoogte
    • Decimal notation with point.

  • Folder:tif

    • In this directory place all tif-files. It is important to place only .tif files in this map. Metadata of the tif-files can be placed in the directory Metadata.
      The count of files should correspond to the count of files in the positionAndOrientation.txt and the calibration.txt. 
    • Filename: Exactly as described in column "PhotoId" of the absolute orientation file txt-file. 
    • Every camera has its own tif-directory within FW, BW and NAD directory (See template directory structure).
• Folder:Ortho
  • Folder:Ortho/ecw
    • In this directory place all ortho .ECW files. Only put ortho ECW-files in this directory. Metadata of the tif-files can be placed in the directory Metadata.

  • Folder:Ortho/tif

    • In this directory place all ortho .TIF files. Only place ortho tif-files in this directory. Metadata of the tif-files can be placed in the directory Metadata.

• Folder:Metadata

  • datasets_metadata_terratec.json, in this file is summarized some specifications related to the data. Please check the example file in zip and fill this in.
  • Files related to the delivered data can be uploaded in this directory.
  • Folder:ImageFootprints
    • This directory should contain the shapefiles for the footprints of the images. Filenames as follows:
      • *_B_Footprints.shp (also accompanying .dbf, .prj, .shx)
      • *_F_Footprints.shp (also accompanying .dbf, .prj, .shx)
      • *_N_Footprints.shp (also accompanying .dbf, .prj, .shx)

• Folder:Pointcloud

  • In this directory place all .LAZ files. Metadata of the laz-files can be placed in the directory Metadata.
    • LAZ-format
    • Color per point optional
    • Intensity per point obligatory
    • Absolute GPS tijd per point

Extra informatie over de hoeken omega, phi, kappa: